单项选择题

Questions 8 to 9 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each question.
Now listen to the news. NASA will make all of the following accessible online EXCEPT ______.

A．real-time weather forecasting
B．real-time tracking of the space shuttle
C．3D maps of the Mars
D．3D maps of the Earth

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单项选择题

Questions 8 to 9 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each question. Now listen to the news. NASA will make all of the following accessible online EXCEPT ______. 您的浏览器不支持 audio 元素。